This might be the possible reason ____ he didn't attend the meeting.
A. why
B. which
C. for
D. that
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Do you have the instruction book ____ the correct procedure is explained in detail?
A. at which
B. which
C. in which
D. by which
The general manager ____ was five minutes late apologized to us.
A. whom
B. that
C. which
D. whose
I made a speech on the people and things ____ I had seen in that multinational company.
A. that
B. who
C. as
D. which
He has been working on a research project, ____ makes him extremely busy recently.
A. that
B. where
C. which
D. when